Table 2:
Mean CT Value and Mean Time to Culture Positivity by Cohort Characteristics
| Mean CT Value (95% CI) | P Value | Mean Days to Culture Positivity (95% CI)* | P Value | |
|---|---|---|---|---|
| Sex | 0.301 | 0.014 | ||
| Male | 24.9 (24.0–25.7) | 12.6 (11.7–13.6) | ||
| Female | 25.5 (24.7–26.4) | 14.3 (13.3–15.6) | ||
| Age category | 0.750 | 0.844 | ||
| ≤35 | 25.2 (24.3–25.9) | 14.3 (12.4–14.4) | ||
| >35 | 25.2 (24.2–26.1) | 13.3 (12.3–14.4) | ||
| Site | <0.001 | <0.001 | ||
| Johannesburg | 26.7 (26.0–27.4) | 17.2 (16.4–18.4) | ||
| Cape Town | 23.3 (22.3–24.3) | 9.9 (9.0–10.6) | ||
| HIV | <0.001 | <0.001 | ||
| Negative | 22.9 (22.0–23.9) | 10.6 (9.8–11.6) | ||
| Positive | 26.6 (25.8–27.3) | 15.8 (14.7–16.8) | ||
| CD4 category | 0.002 | 0.549 | ||
| <200 | 27.6 (26.7–28.5) | 16.6 (14.9–17.3) | ||
| ≥200 | 25.2 (24.0–26.4) | 15.5 (14.0–16.9) | ||
| ART usage | 0.199 | 0.422 | ||
| No ART | 20.4 (18.5–22.4) | 16.1 (13.6–17.8) | ||
| ART | 23.3 (18.99–27.8) | 15.8 (14.3–17.1) |
Definition of abbreviations: ART = antiretroviral treatment; CI = confidence interval; CT = cycle threshold.
*
Geometric mean.